EP0010996B1 - Dispositif d'étanchéité entre une partie fixe et un arbre tournant - Google Patents

Dispositif d'étanchéité entre une partie fixe et un arbre tournant Download PDF

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Publication number
EP0010996B1
EP0010996B1 EP79400599A EP79400599A EP0010996B1 EP 0010996 B1 EP0010996 B1 EP 0010996B1 EP 79400599 A EP79400599 A EP 79400599A EP 79400599 A EP79400599 A EP 79400599A EP 0010996 B1 EP0010996 B1 EP 0010996B1
Authority
EP
European Patent Office
Prior art keywords
ring
slide ring
sealing member
seal assembly
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP79400599A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0010996A1 (fr
Inventor
Jean Menager
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Societe Internationale de Mecanique Industrielle SA
Original Assignee
Societe Internationale de Mecanique Industrielle SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Societe Internationale de Mecanique Industrielle SA filed Critical Societe Internationale de Mecanique Industrielle SA
Publication of EP0010996A1 publication Critical patent/EP0010996A1/fr
Application granted granted Critical
Publication of EP0010996B1 publication Critical patent/EP0010996B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J15/00—Sealings
    • F16J15/16—Sealings between relatively-moving surfaces
    • F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
    • F16J15/36—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member connected by a diaphragm or bellow to the other member

Definitions

  • the present invention relates to a device for sealing between a fixed part and a rotating shaft, of the type comprising a friction ring linked to an elastic membrane fixed to the shaft, and returned by a spring in contact with a counter ring fixed to the fixed part, the friction ring comprising an axial extension surrounding the elastic membrane. More particularly, the invention relates to a device of this type intended to be used in the case where the liquid to be sealed is loaded with solid and in particular fibrous materials.
  • the part of the ring of friction adjacent to the 'against-ring is of reduced diameter and is connected to the remainder of the device by a shoulder, which defines, with the against-ring, a cavity.
  • a shoulder which defines, with the against-ring, a cavity.
  • the invention relates to a sealing device of the aforementioned type, in which there is no longer any risk of solid products present in the liquid accumulating in the vicinity of the rubbing faces and damaging the device.
  • the friction ring has a smooth outer surface which tightens in the direction opposite to the contact face.
  • the sealing device according to the invention will be advantageously used when the liquid to be sealed is loaded with fibrous products which can be wound around the friction ring. This is particularly the case in washing machines, the liquid then being charged with textile materials such as threads or linen stuffing, and in mixers.
  • FIG. 1 shows a fixed part or casing 10 fixed to the tank 1 of a washing machine, and a rotating shaft 20 rotatably supported in the casing 10 by means of a bearing 30 and which drives the perforated drum 2 of the washing machine.
  • the sealing device shown serves to prevent the liquid present between the drum and the tank from entering the bearing 30 and damaging it.
  • This device firstly comprises a fixed part composed of a counter-ring 11 made of friction material, fixed to the casing 10 by means of an elastomer element 12. It comprises, on the other hand, a rotating part linked to the shaft 20, composed of a membrane 21 made of elastomeric material, a friction ring 22 fixed to the membrane 21 and a frustoconical spring 23 which recalls the friction ring 22 in contact with the counter-ring 11, the seal being ensured by the contact between the friction faces of the counter-ring 11 and of the ring 22.
  • the membrane 21 has in cross section substantially the shape of a C. It has an inner portion 24 clamped on the shaft 20 and in abutment against a shoulder 20a of the shaft 20. It will further be noted that the spring 23 comprises a additional turn 23a contiguous to the turn in contact with the portion 24, and thus ensures the radial tightening of the portion 24 on the shaft 20, in addition to the axial thrust on the ring 22 necessary for obtaining the seal .
  • the outer portion 25 of the membrane is surrounded by an axial extension 26 of the friction ring, and ends in a protuberance 27 which is mounted in a correspondingly shaped groove formed in the friction ring.
  • the outer surface of the ring 22 is smooth over its entire length and has, in the example shown, a slight taper, with an angle a of less than 5 °. This arrangement avoids creating a cavity in which threads or other textile products could be wound and, moreover, the slight inclination of the ring 22 in the direction of the drum makes it possible to bring back the textile materials liable to be wound around. of the ring 22.
  • FIG. 2 shows a variant with respect to the embodiment of FIG. 1, in which a metal collar 40 is provided for the radial tightening of the portion 24 of the membrane, provided a development 41 beyond the counter-ring.
  • a metal collar 40 is provided for the radial tightening of the portion 24 of the membrane, provided a development 41 beyond the counter-ring.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Mechanical Sealing (AREA)
  • Sealing Devices (AREA)
  • Sealing Of Bearings (AREA)
EP79400599A 1978-09-14 1979-08-30 Dispositif d'étanchéité entre une partie fixe et un arbre tournant Expired EP0010996B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7826491 1978-09-14
FR7826491A FR2436305A1 (fr) 1978-09-14 1978-09-14 Dispositif d'etancheite entre une partie fixe et un arbre tournant

Publications (2)

Publication Number Publication Date
EP0010996A1 EP0010996A1 (fr) 1980-05-14
EP0010996B1 true EP0010996B1 (fr) 1981-11-04

Family

ID=9212660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79400599A Expired EP0010996B1 (fr) 1978-09-14 1979-08-30 Dispositif d'étanchéité entre une partie fixe et un arbre tournant

Country Status (8)

Country Link
US (1) US4239241A (es)
EP (1) EP0010996B1 (es)
JP (1) JPS5540397A (es)
AR (1) AR219622A1 (es)
DE (1) DE2961260D1 (es)
ES (1) ES484157A1 (es)
FR (1) FR2436305A1 (es)
IN (1) IN153003B (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3222759C2 (de) * 1982-01-25 1985-10-31 Goetze Ag, 5093 Burscheid Gleitringdichtung
US4448428A (en) * 1982-02-08 1984-05-15 Borg-Warner Corporation Mechanical seal assembly
DE3228751C1 (de) * 1982-07-31 1983-06-01 Goetze Ag, 5093 Burscheid Gleitringdichtung
DE3243633C2 (de) * 1982-11-25 1985-12-19 Goetze Ag, 5093 Burscheid Gleitringdichtung
US4511151A (en) * 1983-08-30 1985-04-16 Durametallic Corporation One-piece mounting ring for seal insert
JPS6164626A (ja) * 1984-09-06 1986-04-03 Okura Yusoki Co Ltd 荷積み装置
US4653980A (en) * 1985-08-29 1987-03-31 Borg-Warner Industrial Products, Inc. Mechanical seal for pumps and method of fabricating same
DE3536122A1 (de) * 1985-10-10 1987-04-16 Erwin Biesinger Behandlungsvorrichtung, insbesondere zur behandlung von lederwaren oder fellen
DE3703533A1 (de) * 1987-02-06 1988-08-25 Goetze Ag Gleitringdichtung
US5676382A (en) * 1995-06-06 1997-10-14 Freudenberg Nok General Partnership Mechanical face seal assembly including a gasket
DE29724795U1 (de) * 1997-02-14 2004-04-01 BSH Bosch und Siemens Hausgeräte GmbH Lagereinrichtung für eine Haushalt-Waschmaschine
US20080048400A1 (en) * 2006-08-28 2008-02-28 Freudenberg-Nok General Partnership Unitized seal with integral flanged sleeve
CN108374881A (zh) * 2018-02-05 2018-08-07 江门市鑫辉密封科技有限公司 一种变速箱用耐大偏心及低摩擦阻力的轴密封组件

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR923534A (fr) * 1946-03-09 1947-07-09 Dispositif d'étanchéité entre éléments cylindriques
GB649863A (en) * 1948-08-24 1951-02-07 Crane Packing Ltd Improvements relating to mechanical sealing devices between rotary and stationary machine parts
US2844393A (en) * 1954-05-12 1958-07-22 Gits Bros Mfg Co Shaft seal with radially compacting sealing surfaces
US2992843A (en) * 1956-09-06 1961-07-18 Maytag Co Seal connection
US3031199A (en) * 1958-08-19 1962-04-24 City Nat Bank And Trust Compan Rotary seal
US3782735A (en) * 1971-07-06 1974-01-01 Crane Packing Co Banded sealing washer
US3977685A (en) * 1974-11-05 1976-08-31 Eg&G, Inc. Rotating bellows seal
US4136974A (en) * 1977-08-10 1979-01-30 Palotsee John J Seal and propeller drive assembly for industrial cleaning tanks

Also Published As

Publication number Publication date
EP0010996A1 (fr) 1980-05-14
FR2436305B1 (es) 1981-12-18
DE2961260D1 (en) 1982-01-14
AR219622A1 (es) 1980-08-29
JPS5540397A (en) 1980-03-21
ES484157A1 (es) 1980-05-16
FR2436305A1 (fr) 1980-04-11
IN153003B (es) 1984-05-19
US4239241A (en) 1980-12-16

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